03 CR rough idle
 

I have an issue with my 03 cummins. It has 208k on it. No programmer.

K&N air cleaner. Muffler and Cat delete. Other than that its stock.

At idle and under a load it has a rough idle spot. It dosent do it while driving.

It started doing this a few thousand miles ago.

I recently replaced the tp sensor and it still does the same thing.

I just hate waisting money on the wrong parts.

Any info would greatly appreicated.

White smoke on start up, oil level rising?

No smoke at all on start up. Oil pressure is maybe 70 psi. Its the same as always

Does it take a while to start in the morning (long crank issue)?

Nope. Fires rite up after the light goes out. Everytime

I wonder, do you know the last time the valve lash was adjusted?

No clue. I bought the truck around dec with 199k on it. Is that somethin i need to aderss?

Every 100,000.